Using airborne electromagnetics to improve depth to bedrock estimates in Wisconsin

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Abstract

Depth to bedrock is an important factor in hydrologic systems. The thickness of glacial sediments overlying bedrock in Wisconsin controls the routing of groundwater in surficial aquifers and its Depth to bedrock is often an important factor in hydrologic systems because hydraulic properties of bedrock and overlying sediments are typically appreciably different. For example, the thickness of glacial sediments overlying bedrock in Wisconsin controls the routing of groundwater in surficial aquifers and its connection with surface water bodies such as lakes and wetlands. In fractured bedrock environments, shallow bedrock can be vulnerable to degraded water quality when contaminants at the surface infiltrate quickly through permeable formations. Here, airborne electromagnetic surveys were acquired in three different parts of Wisconsin, totalling more than 5,700 flight line-kilometers, to improve understanding of depth to bedrock, the lithologic composition of overlying sediments, and as input structure for groundwater model development.

Suggested Citation

Minsley, B.J., Crosbie, K.J., Duncker, J.J., Feinstein, D.T., Haas, L., Hart, D., Hunt, R.J., and Komiskey, M.J., 2023, Using airborne electromagnetics to improve depth to bedrock estimates in Wisconsin, AEM2023 8th International Airborne Electromagnetics Workshop, Fitzroy Island, Queensland, Australia, September 3-7, 2023, Extended abstract for AEM 2023 conference, https://doi.org/10.5281/zenodo.10067960.

Study Area

Publication type Conference Paper
Publication Subtype Conference Paper
Title Using airborne electromagnetics to improve depth to bedrock estimates in Wisconsin
DOI 10.5281/zenodo.10067960
Year Published 2023
Language English
Publisher Australian Society of Exploration Geophysicists
Contributing office(s) Geology, Geophysics, and Geochemistry Science Center
Description Extended abstract for AEM 2023 conference
Conference Title AEM2023 8th International Airborne Electromagnetics Workshop
Conference Location Fitzroy Island, Queensland, Australia
Conference Date September 3-7, 2023
Country United States
State Wisconsin
Additional publication details